White Sox Face Two-Year Recovery Window After Leasure's UCL Surgery

The Chicago White Sox are looking at a lengthy absence from reliever Jordan Leasure after the 28-year-old underwent surgery to repair a torn ulnar collateral ligament (UCL). The procedure, which the team announced recently, will sideline Leasure for all of 2027 and push his realistic return to spring training in 2028. For a pitcher in his prime, it's a significant setback and represents roughly two full seasons away from major league competition.

The UCL surgery timeline. Tommy John procedures have become routine in baseball, yet the recovery remains demanding and unpredictable. Players typically need 12-18 months of rehabilitation before attempting a return to game action, and even then, rebuilding arm strength and trust in the injury site takes time. Leasure's expected availability for Spring Training 2028 assumes a straightforward recovery with no complications—a best-case scenario that isn't guaranteed.

Impact on the White Sox bullpen. Losing a reliever for this span forces the organization to look elsewhere for depth and immediate reinforcement. The Sox will need to identify or develop alternative options to fill the gap left by Leasure's absence. The injury underscores the fragility of relief pitching rosters and the constant challenge teams face in maintaining healthy bullpen arms through a full season.

Looking ahead. When and if Leasure returns, the White Sox will be eager to see if he can recapture his pre-injury form. For now, the focus shifts to moving forward without him.

Source: original report ↗